Getting started

Prerequisites

• pixelflow binary available locally.
• An input video file readable through FFMS2.
• Write access to output path.

Create a minimal script

Create hello.pf:

output = source("input.mkv")

Render output

Run:

pixelflow hello.pf -o out.y4m

This command reads script, indexes reachable source(...) nodes, validates final graph, and writes an output stream selected from the final clip format. Integer Gray/YUV clips write Y4M; planar RGB clips write rawvideo.

Write to stdout instead of a file

Run:

pixelflow hello.pf -o - > out.y4m

Video bytes go to stdout. Progress, indexing messages, diagnostics, and timing output stay on stderr.

Next steps

• Read Render scripts for flags.
• Read Sources for path and source option behavior.
• Read FFMS2 source for exact source(...) options.